CN219865636U - Sound-reducing box of centrifugal fan - Google Patents
Sound-reducing box of centrifugal fan Download PDFInfo
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- CN219865636U CN219865636U CN202320775452.1U CN202320775452U CN219865636U CN 219865636 U CN219865636 U CN 219865636U CN 202320775452 U CN202320775452 U CN 202320775452U CN 219865636 U CN219865636 U CN 219865636U
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- box
- sound
- centrifugal fan
- box body
- plate
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- 229920000742 Cotton Polymers 0.000 claims description 8
- 239000003365 glass fiber Substances 0.000 claims description 8
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 6
- 239000008397 galvanized steel Substances 0.000 claims description 6
- 230000030279 gene silencing Effects 0.000 abstract description 5
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000009423 ventilation Methods 0.000 abstract description 3
- 239000011148 porous material Substances 0.000 description 4
- 235000004443 Ricinus communis Nutrition 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a sound-eliminating box of a centrifugal fan, which comprises a closed square box body, wherein the box body is formed by overlapping sound-eliminating plates, a pipe orifice for air outlet of the centrifugal fan is arranged on a top plate of the box body, an air inlet and an air outlet are arranged on side plates of the box body, the air inlet and the air outlet are respectively arranged on a pair of parallel side plates, a cooling fan is arranged at the air outlet, a shutter is arranged at the air inlet, a sound-eliminating air pipe is arranged in the box body, the sound-eliminating air pipe comprises a pipe body arranged at the air inlet, a plurality of baffle plates are arranged in the pipe body, baffle channels are formed between every two adjacent baffle plates, and the baffle channels are communicated with the outside of a boundary through the air inlet. According to the utility model, the silencing air pipe is added into the air inlet, noise in the box body is refracted for multiple times through the baffle plate, the noise can not be transmitted to the outside of the box body basically, and ventilation and heat dissipation can be realized while noise reduction is realized.
Description
Technical Field
The utility model relates to the field of centrifugal fans, in particular to a sound-reducing box of a centrifugal fan.
Background
The fan is widely applied to various important departments such as metallurgy, chemical industry, construction and the like, and plays a very long-term role in promoting industrial production and accelerating construction steps. However, the intense noise generated during the operation of the fan seriously affects the quietness of the environment, damages the hearing of people, damages the health of the building and prevents the normal production and life of people.
As disclosed in CN208966656U, a centrifugal fan is placed in a closed cabinet, which can increase the heat dissipation performance of the fan, affect the service life of the fan and create potential safety hazards.
Disclosure of Invention
The utility model aims to provide a sound-reducing box of a centrifugal fan.
The novel noise-reducing air pipe is characterized in that the noise-reducing air pipe is added into the air inlet, noise in the box body is refracted for a plurality of times through the baffle plate, the noise can not be transmitted outside the box body basically, and ventilation and heat dissipation can be realized while the noise is reduced.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the utility model provides a centrifugal fan sound-reducing box, includes and seals square box, and the box is formed by the overlap joint of acoustical panel, is equipped with the mouth of pipe that centrifugal fan goes out the wind usefulness on the roof of box, installs an air intake and air outlet on the curb plate of box, and air intake and air outlet are arranged respectively on a pair of parallel curb plate, and radiator fan has been arranged to air outlet department, and air intake department is equipped with the shutter, is equipped with the amortization tuber pipe in the box, amortization tuber pipe is including arranging the body in air intake department, is equipped with a plurality of baffles in the body, forms the baffling passageway between the adjacent baffle, and the baffling passageway passes through the air intake and feeds through outside the boundary.
After passing through the louver, the air enters the baffling channel and is pumped out by the cooling fan, the air in the box body forms directional flow, and the noise of the air inlet is not easy to be dispersed out of the box body due to the baffling of the baffling plate of the silencing air pipe.
Preferably, the silencing plate comprises a galvanized steel plate at the outer layer, glass fiber sound absorbing cotton at the middle layer and pp pore plates at the inner layer. The pp pore plate can effectively absorb sound waves by being matched with glass fiber sound absorbing cotton.
Preferably, the galvanized steel sheet is 10mm thick, the pp orifice plate is 3mm thick, and the glass fiber sound absorbing cotton is 100mm thick. The glass fiber sound-absorbing cotton has a thicker thickness and can fully absorb sound waves.
Preferably, the side plate of the box body is provided with an access door. Access door staff enters the box for maintenance.
Preferably, universal casters and adjusting supporting feet are arranged at the bottom of the box body. The universal castor is convenient for transferring the box body and adjusting the supporting legs to fix the box body.
Preferably, the bottom plate of the box body is provided with a damping base, and the damping base comprises a supporting plate for fixing the centrifugal fan and an air spring arranged on the supporting plate. When the fan works, vibration is generated, noise is also generated by the vibration, and the vibration transmission of the fan is blocked by the damping base.
Preferably, the nozzle comprises a pp hard connecting pipe fixed on the top plate and a pvc soft connecting pipe connected with the centrifugal fan. The fan of different models is convenient for connect, and the vibration of the separation fan of pvc flexible coupling pipe also can not lead to on the box.
The beneficial effects of the utility model are as follows:
1. according to the utility model, the silencing air pipe is added into the air inlet, noise in the box body is refracted for multiple times through the baffle plate, the noise can not be transmitted to the outside of the box body basically, and ventilation and heat dissipation can be realized while noise reduction is realized.
2. The universal castor is convenient for transferring the box body and adjusting the supporting legs to fix the box body.
3. The damping base can block the transmission of the vibration of the fan.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic structural view of the muffler plate.
Description of the embodiments
The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.
Example 1: as shown in figures 1 and 2, the centrifugal fan sound-reducing box comprises a closed square box body 1, universal casters 2 and adjusting supporting legs 3 are arranged at the bottom of the box body 1, the box body 1 is formed by overlapping sound-reducing plates 1.1, the sound-reducing plates 1.1 comprise outer galvanized steel plates 1.11, middle-layer glass fiber sound-absorbing cotton 1.12 and inner-layer pp pore plates 1.13, the galvanized steel plates 1.11 are 10mm thick, pp pore plates 1.13 are 3mm thick, glass fiber sound-absorbing cotton 1.12 is 100mm thick, access doors 1.2 are arranged on side plates of the box body 1, pipe orifices 1.3 for air outlet of the centrifugal fan are arranged on top plates of the box body, the pipe orifices 1.3 comprise a section of pp hard connecting pipes 1.31 fixed on the top plates, a section of pvc soft connecting pipes 1.32 connected with the centrifugal fan, shock-reducing bases 4 are arranged on bottom plates of the box body 1, the shock-reducing bases 4 comprise supporting plates 4.1.1 for fixing the centrifugal fan, air springs 4.2 arranged on the supporting plates 4.1, a baffle plate 1.4.5 and a baffle plate 1.5 are arranged on the side plates of the box body 1, an air inlet and a baffle plate 1.7.5 are arranged on the side plates of the box body 1, a baffle plate 1.7 is arranged on the baffle plate 1 and a baffle plate 1.7 is connected with an air inlet channel 1.7.7, and a baffle plate 1.7 is arranged on the side plate 1.7, and a baffle plate 1.7 is arranged on the side of the baffle plate 1.7, and is connected with an air inlet channel is arranged on the baffle box 1.7.
During operation, outside air enters the silencing air pipe 7 through the louver 6, enters the box body 1 through the baffle channel 7.3, the cooling fan 5 pumps out air in the box body, the centrifugal fan in the box body 1 dissipates heat, noise in the box body is refracted through the baffle 7.2 and is not easy to conduct out of the box body 1, and noise at the air inlet 1.4 is almost the same as noise at other non-perforated positions, so that the noise is effectively reduced.
The described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Claims (7)
1. The utility model provides a centrifugal fan sound-deadening box, includes and seals square box, and the box is formed by the overlap joint of acoustical panel, is equipped with the mouth of pipe that centrifugal fan goes out the wind usefulness on the roof of box, installs an air intake and air outlet on the curb plate of box, and air intake and air outlet are arranged respectively on a pair of parallel curb plate, and radiator fan has been arranged to air outlet department, and air intake department is equipped with the shutter, its characterized in that is equipped with the amortization tuber pipe in the box, amortization tuber pipe is including arranging the body in air intake department, is equipped with a plurality of baffling boards in the body, forms the baffling passageway between the adjacent baffling board, and the baffling passageway passes through the air intake intercommunication outside the boundary.
2. The centrifugal fan sound-deadening box according to claim 1, wherein the sound-deadening plate includes a galvanized steel sheet of an outer layer, a glass fiber sound-absorbing cotton of a middle layer, and a pp orifice plate of an inner layer.
3. The centrifugal fan sound-reducing box according to claim 1, wherein the galvanized steel sheet is 10mm thick, the pp orifice plate is 3mm thick, and the glass fiber sound-absorbing cotton is 100mm thick.
4. The sound-reducing box of centrifugal fan according to claim 1, wherein the side plate of the box body is provided with an access door.
5. The centrifugal fan sound-reducing box according to claim 1, wherein universal casters and adjusting supporting feet are arranged at the bottom of the box body.
6. The loudspeaker box of the centrifugal fan according to claim 1, wherein a damping base is arranged on a bottom plate of the box body, and the damping base comprises a supporting plate for fixing the centrifugal fan and an air spring arranged on the supporting plate.
7. The centrifugal fan sound-reducing box according to claim 1, wherein the nozzle comprises a pp hard connection pipe fixed on the top plate and a pvc soft connection pipe connected with the centrifugal fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320775452.1U CN219865636U (en) | 2023-04-11 | 2023-04-11 | Sound-reducing box of centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320775452.1U CN219865636U (en) | 2023-04-11 | 2023-04-11 | Sound-reducing box of centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219865636U true CN219865636U (en) | 2023-10-20 |
Family
ID=88320465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320775452.1U Active CN219865636U (en) | 2023-04-11 | 2023-04-11 | Sound-reducing box of centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219865636U (en) |
-
2023
- 2023-04-11 CN CN202320775452.1U patent/CN219865636U/en active Active
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